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Finding the Fourth Proportional to 899,899, 1,241,886.56 and 497,516.92

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Solution

The fourth proportional to 899,899, 1,241,886.56 and 497,516.92 is: 686,587.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    899,899 : 1,241,886.56 = 497,516.92 : x
  2. Step 2: Convert to fraction form
    899,899/1,241,886.56 = 497,516.92/x
  3. Step 3: Cross multiply
    899,899x = 1,241,886.56 × 497,516.92
  4. Step 4: Simplify right side
    899,899x = 617,859,576,320.60
  5. Step 5: Solve for x
    x = 617,859,576,320.60/899,899
  6. Step 6: Final answer
    x = 686,587.69

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.